沿江圩区农作物病虫草害演替及综合治理对策

沿江圩区主要农作物病虫草害演替呈现以下特点 :种类增加 ,不断出现新的病虫为害 ;危害期拉长 ,发生程度加重 ;突发性病虫暴发成灾 ;螟虫危害趋于复杂化等。为此制定了近期与长远期综合治理措施 ,及时有效地控制其危害

The Succession of Diseases, Pests and Weeds in Crop Field along the Yangtze River Region and its Countermeasure Strategy

The character of main diseases,pests and weeds in crop field along the Yangtze River Region was as follows:the increase in their species, the long time of damage, the heavy of occurrence degree and the disaster present suddenly.And new speices of diseases and pests continually presented and the damage of the different borers was more complicate.Thus, the strategy of countermeasure was made out for effective control of diseares, pests and weeds.